Ballpoint pen



FIG. 1 is a perspective view of back, top and left side of a ballpoint pen showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is an enlarged view of the portion of FIG. 1 shown in A-B.

The broken lines in FIGS. 1, 2, 3, 5, 6, and 7 are included for the purpose of showing portions of the ballpoint pen that form no part of the claimed design. 

CLAIM The ornamental design for a ballpoint pen, as shown and described. 